Gymnocladus Species, Dead Tree, Kentucky Coffee Tree, Stump Tree

Gymnocladusdioica

Family
Fabaceae (fab-AY-see-ee)
Genus
Gymnocladus (jim-no-KLAD-us)
Species
dioica (dy-oh-EE-kuh)
Synonym
Guilandina dioica
Gymnocladus canadensis
Gymnocladus dioicus
Sun Exposure
Full Sun
Foliage
Deciduous
Height
over 40 ft. (12 m)
Spacing
20-30 ft. (6-9 m)
Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
Danger
Seed is poisonous if ingested
Bloom Color
White/Near White
Bloom Time
Late Spring/Early Summer
Other Details
Category
Trees
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Non-patented
Propagation Methods
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Properly cleaned, seed can be successfully stored
Regional

This plant is said to grow outdoors in the following regions:

Denver, Colorado

Grand Junction, Colorado

Hinsdale, Illinois

Naperville, Illinois

Benton, Kentucky

Clermont, Kentucky

Frankfort, Kentucky

Georgetown, Kentucky

Lexington, Kentucky

Louisville, Kentucky

Nicholasville, Kentucky

Paris, Kentucky

Versailles, Kentucky

Silver Spring, Maryland

Battle Creek, Michigan

Grosse Pointe, Michigan

Novi, Michigan

Buffalo, Minnesota

Minneapolis, Minnesota(3 reports)

Roswell, New Mexico

Hulbert, Oklahoma

Downingtown, Pennsylvania

Wilkes Barre, Pennsylvania

Nashville, Tennessee

Orem, Utah

Wytheville, Virginia

Grand Mound, Washington

Rochester, Washington

Ellsworth, Wisconsin

show all

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Gardener's Notes:

7
positives
1
neutral
0
negative
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R
Downingtown, PA | December 2013 | positive

Nice, stout, macho shade tree with a bold outline that grows about 1 ft/yr and lives about 100 to 150 years. Dioecious, having separate m...Read More

S
Chambersburg, PA | April 2011 | positive

One of these trees grows outside my dorm I collected some seeds last month and cleaned them up the first one i've tried to grow already h...Read More

M
Coon Rapids, MN (Zone 4a) | June 2008 | positive

Not very common in the Twin Cities area - they are fairly rare and the largest number I have seen is at the University of Minnesota St. P...Read More

L
Minneapolis, MN (Zone 4a) | February 2008 | positive

The tree provides nice shade, but not such a dark shade that plants can't be grown underneath it. It seems to grow decently well anywhere...Read More

M
M
Benton, KY (Zone 7a) | November 2004 | positive

This tree is mostly native West of the Applachians. It's seeds were roasted and used as coffee in some areas during the Civil War.
...Read More

G
Silver Spring, MD | September 2003 | positive

In Windsor, Ontario: it is nearly extinct in the wild, where it generally grows slowly. In intensive cultivation (i.e., water, abundant ...Read More

G
Denver, CO (Zone 5a) | June 2003 | positive

Recommended as a lower-water street tree in Denver, CO. Slow-growing and leafs out late, which is a good defense against spring snows. ...Read More

S
Oklahoma City, OK (Zone 7a) | August 2001 | neutral

This tree is a durable tree with an attractive form. The female trees produce fruit (pods that look lima bean-like) and are initially gr...Read More

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